Dow Corning Kabushiki Kaisha

Other

Dow Corning Corporation

Hideki Nakahara

Koichi Aizawa

Shingo Sewa

Daniel F McMahon

Peter Otto Bentz

Edward Burton Scott

Hydrosilylation reaction curable organosiloxane compositions containing a scavenger for radicals that participate in the free radical polymerization of styrene monomers, which yield upon cure a silicone elastomers having extended moldlife.

Hydrosilylation reaction curable organosilxane compositions

The present invention provides a silicone antifoaming agent composition excellent in the persistence of the foam controlling effect. The silicone antifoaming agent composition comprises a polydiorganosiloxane and silica, which form an antifoaming agent to be improved, and 1 to 200 parts by weight per 100 parts by weight of the sum total of the polydiorganosiloxane plus silica of a lightly crosslinked siloxane having fluidity.

Silicone antifoaming agent composition

Foam control compositions are prepared by reacting a mixture of components which include a polyorganosiloxane fluid bearing one or more hydroxyl and/or hydrocarbonoxy groups, a resinous siloxane or a silicone resin-producing silicon compound, a finely divided filler material and a catalyst to promote the reaction of the listed components. The compositions can optionally contain a polyorganosiloxane fluid which is substantially free of reactive groups and/or a polyorganosiloxane fluid bearing two or more hydroxyl and/or hydrocarbonoxy groups.

Method of producing a silicone defoamer composition

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Kanagawa, Japan

Hideki Nakahara